Patents Assigned to Celanese Emulsions GmbH
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Publication number: 20140162018Abstract: Disclosed are carpet products made using a first copolymer precoat adhesive to secure carpet fibers to a carpet backing or substrates in combination with a second copolymer skipcoat adhesive for securing a carpet scrim or other layer to a carpet backing. The first copolymer is a copolymer of a vinyl ester and ethylene and a cross-linking comonomer, and the second copolymer is a copolymer of styrene and butadiene. Such emulsions are stabilized with surfactant emulsifiers but are preferably substantially free of protective colloid stabilizers. The first copolymer exhibits an elongation value greater than 125% at 110° C.Type: ApplicationFiled: December 6, 2013Publication date: June 12, 2014Applicant: Celanese Emulsions GmbHInventors: David Lunsford, Rajeev Farwaha, Rebekah Stuart
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Patent number: 8716519Abstract: The invention relates to novel cross-linkable monomers that may be polymerized with ethylenically unsaturated comonomers to form cross-linkable copolymers. Said copolymers may particularly be used in the form of aqueous dispersions as formaldehyde-free adhesives or as coatings with good water resistance.Type: GrantFiled: July 11, 2008Date of Patent: May 6, 2014Assignee: Celanese Emulsions GmbHInventors: Martin Jakob, Stefan Nogai
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Publication number: 20130253101Abstract: A binder mixture is described comprising: an aqueous copolymer dispersion which has a glass transition temperature, Tg, of less than 10° C. and which is prepared by emulsion polymerization of a monomer mixture comprising: (i) at least 60% by weight, based on the total amount of monomers, of at least one vinyl ester; (ii) from 15 to 30% by weight, based on the total amount of monomers, of ethylene; (iii) from 0.05 to 5% by weight, based on the total amount of monomers, of an ethylenically unsaturated carboxylic acid having at least 4 carbon atoms; and (iv) from 0.05 to 5% by weight, based on the total amount of monomers, of an ethylenically unsaturated sulfonic acid or salt thereof.Type: ApplicationFiled: March 12, 2013Publication date: September 26, 2013Applicant: CELANESE EMULSIONS GMBHInventors: Kerstin GOHR, Jinjie Du, Yuan Ren, Yi Fang Shi
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Publication number: 20130203927Abstract: A plasticized binder composition suitable as a binder for chopped strand mats comprising (a) a copolymer obtainable by reacting; (i) 60-95 pphwm of vinyl acetate; and (ii) 5-40 pphwm of vinyl ester of ?-substituted alkanoic acid; and b) a plasticizer, wherein the weight ratio of copolymer/plasticizer is from 1 to 6.Type: ApplicationFiled: June 15, 2011Publication date: August 8, 2013Applicant: CELANESE EMULSIONS GMBHInventors: Hendrikus Van Boxtel, Paolo Bavaj, Steve Laborda, Ratering Marc, Peter Zeimentz
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Publication number: 20130190448Abstract: An aqueous polymer composition is described comprising a homogeneous acrylic polymer dispersion produced by emulsion polymerization of a monomer mixture comprising: (A) from 85 to 99.9 wt % of one or more main monomers selected from C1-C12-alkyl esters of acrylic acid or C5-C12-alkyl esters of methacrylic acid, styrene, and vinyl toluene in such a ratio as to produce a polymer having a Tg in the range of ?20 to +65° C.; and (B) from 0.1 to 5 wt % of at least one stabilising monomer selected from ethylenically unsaturated monocarboxylic acids or amides thereof, ethylenically unsaturated dicarboxylic acids or anhydrides or amides thereof, ethylenically unsaturated sulfonic acids, ethylenically unsaturated phosphoric acids, and ethylenically unsaturated phosphonic acids. The emulsion polymerization is conducted in the presence of 0.05 to 3 wt %, based on the total weight of monomers in the monomer mixture, of a chain transfer agent (C).Type: ApplicationFiled: January 14, 2013Publication date: July 25, 2013Applicant: CELANESE EMULSIONS GMBHInventor: Celanese Emulsions GmbH
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Publication number: 20130177733Abstract: Disclosed are carpet products comprising at least one flexible substrate and at least one coating layer associated with the at least one flexible substrate. The coating layer is formed from an aqueous composition comprising: A) an emulsifier-stabilized vinyl acetate/ethylene (VAE) emulsion copolymer dispersion wherein the VAE copolymer therein comprises co-monomers which include at least vinyl acetate copolymerized with ethylene and optionally also with other additional functional and/or non-functional co-monomers; and B) at least one particulate filler material selected from particulate inorganic compounds and particulate plastic material. The vinyl acetate/ethylene copolymer in the copolymer dispersion has a particle size, dw, ranging from about 50 to about 500 nm as determined by Laser Aerosol Spectroscopy. Such carpet products maintain their integrity and appearance after multiple machine washing operations.Type: ApplicationFiled: August 12, 2011Publication date: July 11, 2013Applicant: CELANESE EMULSIONS GMBHInventors: Harmin Müller, Paul Wormald, Paolo Bavaj
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Publication number: 20130156997Abstract: Disclosed are carpet products comprising at least one flexible substrate and at least one coating and/or adhesive layer associated with the at least one flexible substrate. The coating and/or adhesive layer is formed from an aqueous composition comprising: A) an emulsifier-stabilized vinyl acetate/ethylene (VAE) emulsion copolymer dispersion and B) at least one particulate filler material selected from particulate inorganic compounds and particulate plastic material. The vinyl acetate/ethylene copolymer in the copolymer dispersion has a selected ethylene content or glass transition temperature. It is also preferably substantially free of cross-linkable co-monomer moieties which generate formaldehyde upon curing and preferably has a particle size, dw, ranging from about 50 to about 500 nm. The carpet product is substantially free of polyvinyl chloride and bitumen and exhibits a Class B1 flame-retardancy in accordance with DIN 4102-14, corresponding to a critical heat flux of ?about 4.5 kW/m2.Type: ApplicationFiled: August 12, 2011Publication date: June 20, 2013Applicant: CELANESE EMULSIONS GMBHInventors: Harmin Muller, Paul Wormald, Paolo Bavaj
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Patent number: 8440766Abstract: The present invention describes a method for the manufacturing of a multi-stage polymer by the following steps: a) polymerizing monomer mixture (A) comprising a-i) vinyl acetate and a-ii) at least one vinyl ester of an aromatic carboxylic acid via free radical emulsion polymerization to obtain copolymer (A); and b) polymerizing monomer mixture (B) comprising b-i) vinyl acetate and b-ii) at least one vinyl ester of aliphatic branched or unbranched carboxylic acids having at least 3 carbon atoms, via free radical emulsion polymerization in the presence of copolymer (A) to obtain the multi-stage polymer with the proviso that said monomer mixture (B) can also be polymerized first to obtain a copolymer (B) and subsequently monomer mixture (A) is polymerized in the presence copolymer (B) to obtain the multi-stage polymer.Type: GrantFiled: July 28, 2010Date of Patent: May 14, 2013Assignee: Celanese Emulsions GmbHInventors: Lizandra Belmonte Rodrígues de Castro, Kerstin Gohr
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Patent number: 8436088Abstract: Plasters and renders and paints, copolymer dispersions and their use Compositions containing selected polymer dispersions, colloidal silica, fillers and pigments are described. These can be formulated to give plasters and renders or paints which are distinguished by excellent abrasion resistance, little tendency to soiling, high water vapor permeability, good adhesion and good weathering stability. The compositions according to the invention can be processed to give plasters and renders or paints which have a nanostructured surface and which differ from conventionally produced surfaces.Type: GrantFiled: September 21, 2007Date of Patent: May 7, 2013Assignee: Celanese Emulsions GmbHInventors: Ivan Cabrera, Thomas Fichtner, Stephan Krieger, Marc Theodorus Ratering
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Publication number: 20130095719Abstract: The invention relates to mineral wool fiber mats, which are stabilized by means of a binder made of polymers funtionalized with epoxy groups and/or with carboxyl groups and selected cross-linking agents. Said mats can be used as an insulating material and are characterized by low or no formaldehyde emissions.Type: ApplicationFiled: March 23, 2011Publication date: April 18, 2013Applicant: CELANESE EMULSIONS GMBHInventors: Christoph Deller, Martin Jakob, Paolo Bavaj, Paul Scott
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Publication number: 20120316282Abstract: An aqueous dispersion of a vinyl ester/ethylene copolymer is prepared by emulsion copolymerization of a monomer mixture comprising a vinyl ester, ethylene and a polyvinyl alcohol stabilizing system consisting essentially of (a) about 0.5 to about 3 wt % based on the total monomer weight of a first polyvinyl alcohol having a degree of hydrolysis of at least 98 mole % and (b) about 1 to about 4 wt % based on the total monomer weight of a second polyvinyl alcohol having a degree of hydrolysis of about 85 to about 90 mole % and a weight average molecular weight of at least 85,000 g/mol.Type: ApplicationFiled: June 7, 2012Publication date: December 13, 2012Applicant: CELANESE EMULSIONS GMBHInventors: Jörg SCHULTE, Alexander MADL, Hans Uwe FAUST
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Publication number: 20120061607Abstract: Disclosed is an aqueous formulation comprising a polymer which is based on a vinyl acetate copolymer, a binder system comprising said aqueous formulation and additionally an aqueous formulation comprising polymer (B). The invention further relates to a fibrous product comprising a fibrous substrate as well as the aqueous formulation or the binder system and use of the aqueous formulation or the binder system for coating synthetic or mineral fibres, for the manufacturing of Eternal Insulation Finishing Systems (EIFS), for increasing the alkali resistance of synthetic or mineral fibres and use in a process for the manufacturing of an alkali resistant glass fibre scrim. Further, the invention relates to a method for the manufacturing of the aqueous formulation.Type: ApplicationFiled: September 15, 2011Publication date: March 15, 2012Applicant: CELANESE EMULSIONS GMBHInventors: Alistair McLennan, Paolo Bavaj, Rian van Straeten, Steve Laborda, Peter M. Zeimentz, Hendrikus C.M. Van Boxtel
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Publication number: 20120029142Abstract: The present invention describes a method for the manufacturing of a multi-stage polymer by the following steps: a) polymerizing monomer mixture (A) comprising a-i) vinyl acetate and a-ii) at least one vinyl ester of an aromatic carboxylic acid via free radical emulsion polymerization to obtain copolymer (A); and b) polymerizing monomer mixture (B) comprising b-i) vinyl acetate and b-ii) at least one vinyl ester of aliphatic branched or unbranched carboxylic acids having at least 3 carbon atoms, via free radical emulsion polymerization in the presence of copolymer (A) to obtain the multi-stage polymer with the proviso that said monomer mixture (B) can also be polymerized first to obtain a copolymer (B) and subsequently monomer mixture (A) is polymerized in the presence copolymer (B) to obtain the multi-stage polymer.Type: ApplicationFiled: July 28, 2010Publication date: February 2, 2012Applicant: CELANESE EMULSIONS GMBHInventors: Lizandra Belmonte Rodrigues de Castro, Kerstin Gohr
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Publication number: 20120009379Abstract: The invention relates to vinyl acetate-ethylene copolymer dispersions suitable for treating textle web materials, and to textile web material treated therewith, being suitable in particular as floor coverings or as belts. The vinyl acetate-ethylene-copolymer dispersions are characterized by a low ethylene unit content, relatively high glass transition temperatures, and a small particle size.Type: ApplicationFiled: February 6, 2010Publication date: January 12, 2012Applicant: CELANESE EMULSIONS GMBHInventors: Harmin Müller, Paul Stuart Wormald
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Patent number: 8053511Abstract: A description is given of a process of emulsion polymerization of free-radically polymerizable ethylenically unsaturated monomers selected from the group of the monoesters or diesters of ethylenically unsaturated monocarboxylic or dicarboxylic acids with alkanols, vinyl esters and/or vinylaromatics and, if desired, further monomers copolymerizable therewith, at least 60% of the total conversion in the polymerization taking place at a temperature of 100° C. to 160° C., the polymerization being performed in the presence of emulsifiers and an amount of 0% to 1% by weight, based on the total amount of the monomers used, of protective colloid. The process can be used to obtain significantly faster conversions for comparable quality of the process products. The dispersions obtained can be employed in a wide variety of different applications, such as binders for paints or as adhesives.Type: GrantFiled: February 6, 2009Date of Patent: November 8, 2011Assignee: Celanese Emulsions GmbHInventors: Harmin Muller, Harald Petri, Thomas Drechsel
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Patent number: 8030391Abstract: Multistage polymers predominantly stabilized by nonionic emulsifiers and derived from hard and soft monomer compositions containing vinyl esters, of which at least one monomer composition must contain an unsaturated compromisable organosilicon compound, are described. The plastic dispersions can be used as binders in emulsion paints and finishes and impart to these excellent scrub resistance in addition to good blocking resistance.Type: GrantFiled: June 27, 2006Date of Patent: October 4, 2011Assignee: Celanese Emulsions GmbHInventors: Harald Petri, Ivan Cabrera
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Publication number: 20110190462Abstract: The invention relates to novel cross-linkable monomers that may be polymerized with ethylenically unsaturated comonomers to form cross-linkable copolymers. Said copolymers may particularly be used in the form of aqueous dispersions as formaldehyde-free adhesives or as coatings with good water resistance.Type: ApplicationFiled: July 11, 2008Publication date: August 4, 2011Applicant: CELANESE EMULSIONS GMBHInventors: Martin Jakob, Stefan Nogai
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Publication number: 20100256292Abstract: What are described are alkalified compositions comprising an aqueous dispersion of selected polymers, and comprising selected polyaldehydes as crosslinking agents. From these formulations it is possible to produce coating compositions having a very high blocking resistance and having excellent mechanical properties.Type: ApplicationFiled: May 26, 2008Publication date: October 7, 2010Applicant: CELANESE EMULSIONS GMBHInventors: Martin Jakob, Ulrich Desor, Ivan Cabrera
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Patent number: 7789959Abstract: A description is given of coating compositions comprising at least one strongly basic agent to set a pH of at least 10, at least one selected vinyl ester copolymer, if desired, pigment and/or filler, and, if desired, further additives customary per se. The coating compositions can be stored without use of additional preservatives and can be used to coat substrates of all kinds.Type: GrantFiled: May 4, 2005Date of Patent: September 7, 2010Assignee: Celanese Emulsions GmbHInventors: Thomas Fichtner, Ivan Cabrera, Bernhard Momper
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Patent number: 7776938Abstract: A description is given of food coating compositions comprising a) a plastics dispersion or a mixture of plastics dispersions comprising at least one homo- or copolymer poly(meth)acrylate having at least 55% by weight (meth)acrylate monomer units and also 0.1 to 30% by weight of at least one protective colloid, and also b) aids and/or additives used for producing food coatings. The coatings are distinguished by sufficiently high water vapor transmission rates, low water absorption capacity and also low reemulsification capacity and have good mechanical properties in the moist state.Type: GrantFiled: June 23, 2005Date of Patent: August 17, 2010Assignee: Celanese Emulsions GmbHInventors: Martin Jakob, Heinrich Harrer, Ivan Cabrera